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ALEXANDRA NGOC-MI NGUYEN MD
NPI 1093389181
Surgery in Colton, CA

Active since May 13, 2021PECOS Enrolled
400 N PEPPER AVE, COLTON, CA 92324(909) 580-3362 Get Directions Write a Review

NPPES record last updated: July 16, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jul 16, 2026, May 13, 2021 (2 updates tracked since 2021).

About Alexandra Ngoc-mi Nguyen Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ALEXANDRA NGOC-MI NGUYEN MD (NPI 1093389181) is an individual surgery provider in Colton, California, licensed in California (A195165) and active in the NPI registry since May 2021. She is enrolled in Medicare PECOS and is a graduate of Other (2021).

NPPES Registry Identity

NPI1093389181
Entity TypeIndividualFemale
Primary Taxonomy208600000X
Provider Legal NameALEXANDRA NGOC-MI NGUYENCredential: MD
Location Address400 N PEPPER AVEColton, CA 92324-1801
Mailing Address400 N Pepper AveColton, CA 92324-1801 · (909) 580-3362
Phone(909) 580-3362
Sole ProprietorNo
Medical School CMSOtherGraduated 2021
Enumeration DateMay 13, 2021
Last NPPES UpdateJuly 16, 20262 updates tracked since enumeration
NPPES CertifiedJuly 16, 2026
✔ NPI 1093389181 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208600000X
License✔ Licensed in CA · A195165
Definition
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
400 N PEPPER AVE, Colton, CA 92324
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Alexandra Ngoc-mi Nguyen Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID8527524651
PECOS Enrollment IDI20260729003519
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Alexandra Nguyen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Advance Surgeons Medical Group Inc
44 mi
Surgery
120 W HELLMAN AVE STE 203
Monterey Park, CA 91754
  • Reassigned Medicare billing, California enrollment
  • 11 clinicians in this Medicare group
NPI 1952311680 (626) 457-6333

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92324 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$91.88 typical visit price
range $59.60 – $179.42
Typical copayment $22.97 (range $14.90 – $44.85)
Most-billed visit code 99203
Established Patient
$74.08 typical visit price
range $19.37 – $146.42
Typical copayment $18.52 (range $4.84 – $36.60)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

CATHERINE J CALHOUN
Licensed Psychiatric Technician
400 N PEPPER AVE
COLTON, CA 92324
San Bernardino County (909) 580-1800
CINDY COZART
Registered Nurse (Psychiatric/Mental Health)
400 N PEPPER AVE
COLTON, CA 92324
San Bernardino County (909) 580-1800
ARROWHEAD REGIONAL MEDICAL CENTER
General Acute Care Hospital
400 N PEPPER AVE
COLTON, CA 92324
San Bernardino County (909) 580-1000
LINDA MATTHEWS
Registered Nurse
400 N PEPPER AVE
COLTON, CA 92324
San Bernardino County (909) 580-3144
BRANDI DEUEL
Registered Nurse
400 N PEPPER AVE
COLTON, CA 92324
San Bernardino County (909) 580-3144
CHIQUE LOU FLORES RN
Registered Nurse
400 N PEPPER AVE
COLTON, CA 92324
San Bernardino County (909) 580-1800
KEVIN THIEN ONG
Student in an Organized Health Care Education/Training Program
400 N PEPPER AVE
COLTON, CA 92324
San Bernardino County (510) 525-6927
CAROLYN M DOHERTY MD
Otolaryngology
400 N PEPPER AVE, MOB SUITE 308
COLTON, CA 92324
San Bernardino County (909) 580-3353

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Alexandra Nguyen's NPI number?

The NPI number for Alexandra Nguyen is 1093389181. It was assigned to this individual provider in the NPPES registry on May 13, 2021.

Where is Alexandra Nguyen located?

Alexandra Nguyen practices at 400 N Pepper Ave, Colton, CA 92324. The listed phone number is (909) 580-3362.

What is Alexandra Nguyen's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Is Alexandra Nguyen enrolled in Medicare?

Yes. Alexandra Nguyen is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Alexandra Nguyen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Alexandra Nguyen reassigns Medicare benefits to Advance Surgeons Medical Group Inc (Monterey Park, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Alexandra Nguyen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Alexandra Nguyen was last updated on July 16, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.